Emacs is a fun long-term ride. A gift of sorts that keeps on giving... and by that, I mean no matter how experienced you are, you'll continue learning something new at all times. I often write about things I discover or build myself at https://xenodium.com.

https://planet.emacslife.com is a great aggregator. https://reddit.com/r/emacs is handy too. https://www.youtube.com/c/SystemCrafters is an awesome channel. https://emacsrocks.com has some awesome demos. https://emacsrocks.com/e13.html is one of my all-time favorites (watch until the end, has a worthy finale).